package com.atguigu.gulimall.member.exception;

/**
 * @program: gulimall
 * @description: TODO
 * @author: YuWenYi
 * @create: 2021-07-15 10:05
 **/
public class UsernameExistException extends RuntimeException {
    public UsernameExistException() {
        super("该用户名已存在");
    }
}
